Uy, mama, I know it's scary kapag may unusual tummy sensations during pregnancy, pero please get this checked with your OB agad, ha? They can do an ultrasound to see exactly kung saan positioned ang baby at kung normal lahat. I had a few mum friends na nag-worry din about weird hardness sa belly, kaya seryoso, better safe than sorry, one visit lang to your doctor and mapapakali ka na, promise! Sending love!